Does anyone have some mindfulness tips for dealing with feelings of envy?

I have a good life and feel very grateful for the things I have. Youth, health, a wonderful partner, a hopeful future. But sometimes I feel a lot of pain about my past and I feel jealous of things that other people have—supportive family, inherited wealth they did not work for, rich spouses, extravagant weddings, a DISH WASHER (lol), etc.

How can I get over these feelings of being “slighted” and have more productive and healthy emotions?